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Search Auto Parts Search Chevy s-10 electrical short??? Sign up here!   Email This Post Auto Repair Home>> Automotive Repair>> Automotive Wiring and Electrical llucas_4 Novice Feb 17, 2013, 11:50 AM Post #1 of 3 (2210 views) Chevy s-10 electrical short??? Sign In 1994 chevy s-10, 4.3L v6 4x4 automatic. Ok so I've been having a problem which I believe is an electrical short? I get really bad fuel mileage, like 5mpg. The truck died while I was driving it around town, I was able to get it restarted. A mile later it died. It would still turn over and the lights were all still working. I brought it home the next day the battery had run completely down. I put a charger on to it but I couldn't get it to full charge. I went and got a new battery. Truck ran for 2 day died again while driving. The battery was completely drained by the time I towed it home. I did happen to get an obd reading on the truck it came back as 13 oxygen sensor circuit open. Hammer Time Ultimate Carjunky / Moderator Feb 17, 2013, 1:17 PM Post #2 of 3 (2193 views) Re: Chevy s-10 electrical short??? Sign In   All "crank, no start" conditions are approached in the same way. Every engine requires certain functions to be able to run. Some of these functions rely on specific components to work and some components are part of more than one function so it is important to see the whole picture to be able to conclude anything about what may have failed. Also, these functions can ONLY be test during the failure. Any other time and they will simply test good because the problem isn't present at the moment. If you approach this in any other way, you are merely guessing and that only serves to replace unnecessary parts and wastes money. Every engine requires spark, fuel and compression to run. That's what we have to look for. These are the basics that need to be tested and will give us the info required to isolate a cause. 1) Test for spark at the plug end of the wire using a spark tester. If none found, check for power supply on the + terminal of the coil with the key on. 2) Test for injector pulse using a small bulb called a noid light. If none found, check for power supply at one side of the injecter with the key on. 3) Use a fuel pressure gauge to test for correct fuel pressure, also noticing if the pressure holds when key is shut off. Once you have determined which of these functions has dropped out, you will know which system is having the problem. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional. Sidom Veteran / Moderator Feb 17, 2013, 1:26 PM Post #3 of 3 (2184 views) Re: Chevy s-10 electrical short??? Sign In Looks like you have a couple of problems here.....1st lets get it started.......Charge the battery & see if it starts.....If it doesn't, then HT has posted the next step....If it does start the get a voltmeter and see what the voltage is when it's running....If it's in the 12v range while running then you have a charging system problem & we'll have to go from there.... Go charge the battery & see what you have after that   Email This Post   Automotive Repair     Auto Body Repair and Refinishing     Heating or AC Issues     Electrical and Wiring     Brake Systems     Car Stereo Repair Advice     General Discussions     Car Making Funny Noises     Engine Fault Codes     Engine Troubles     Exhaust Systems     Steering and Suspension     Transmission Troubles     Tricks of the Trade Automotive World     General Discussions     Antique Car Talk     Car Shows and Events     The Bargin Bin     Motor Vehicle Inspection     Car Care Tips     Traffic Tickets     Gasoline, Motor Oils, Concept Cars and Engines     Auto Insurance, Financing, Leases, Warranties Truck Repair     General Discussions     Truck Engine Repair     Truck Suspension Repair Motorcycle Repair     General Discussions     Motorcycle Engine Repair CarJunky     Open Posting     Board FAQ's     New Board Suggestions

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